Buhairi Rifqa Moustafid
Dragonfly is an insect, a member of the Odonata order, and renowned for its long wings and slender body.
Dragonfly boasts large eyes that encompass most of its head, allowing it to fly at astonishing speeds.
The dragonfly’s distribution spans various aquatic habitats, including lakes, rivers, and marshes worldwide, excluding freezing regions.
Dragonflies primarily feed on small insects, including flies and mosquitoes. They are efficient predators; their speed and agility make them adept at hunting prey in the air.
Generally, the length of a dragonfly’s body ranges from 0.39 to 2.36 inches or around 1 to 6 centimeters, with some species having wingspans exceeding 3.94 inches or 10 centimeters.
The largest dragonfly ever discovered is the Megaloprepus caerulatus from Central America, with a body length of approximately 4.72 inches or 12 centimeters and a wingspan reaching 7.48 inches or 19 centimeters.
On the other hand, the smallest living dragonfly is the Nannophyra pygmaea from East Asia, measuring 0.59 inches or 15 mm in length and having a wingspan of 0.79 inches or 20 mm.
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Contents
Exceptional Flying Abilities for Aerial Predation
Not without reason, the dragonfly is nicknamed the stealth fighter jet. This moniker is bestowed upon it due to its extraordinary and rapid flying capabilities.
The dragonfly’s exceptional flying abilities are attributed to having two sets of wings with muscles in the chest that can move each wing independently.
This allows them to adjust the angle of each wing, enhancing their agility in flight.
Their flying prowess enables them to intercept prey in the air, making them feared by other insects such as mosquitoes and flies.
Not only do they chase their prey, but they can also attack airborne prey. During hunting, their success rate in capturing prey can exceed 90%.
Eyes as Head and Enhanced Color Vision
Apart from their wings, the dragonfly’s eyes are particularly captivating. These creatures have relatively large heads, with the eyes being the central focus.
Remarkably, the dragonfly’s head consists mainly of compound eyes of considerable size. Their vision covers almost 360 degrees, with only one blind spot directly behind them.
The dragonfly’s eyes contain 30,000 facets, each capable of providing information about the surrounding environment, including details about their prey.
Having exceptional vision allows dragonflies to monitor a single insect within a swarm and pursue it for prey. Their ability to see a broader spectrum of colors than humans is extraordinary.
While humans generally perceive three primary colors, red, blue, and green, and their combinations, dragonflies can see additional colors with a different visual spectrum.
Three Life Cycle Stages with Temperature Regulation Ability
Similar to butterflies, dragonflies undergo three stages in their life cycle: egg, larva, and adult dragonfly.
As eggs and larvae, they reside in water for approximately 2 years, depending on the species.
Although they typically lay eggs in rivers, marshes, mangroves, or freshwater bodies like streams, some dragonfly species can lay eggs in saline water.
An example is the Erythrodiplax berenicei, a coastal dragonfly found in North America, which is rare.
Adult dragonflies can live for a maximum of four months. Adult dragonflies are not considered pests but rather serve as bioindicators of a healthy environment.
Dragonflies also possess the ability to regulate their body temperature. They have thermoregulation capabilities, which involve a homeostatic mechanism to maintain their body temperature within a normal range and increase it efficiently.
While patrolling the air, dragonflies flip their wings back and forth. This flying motion indirectly raises their body temperature, especially due to their rapid movements.
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Inspiring the Creation of Helicopters
Igor Sikorsky drew inspiration from dragonflies for human aviation. Dragonflies exhibit a unique ability to fly with dynamic wing movements and high speeds.
Igor Sikorsky, a Russian-American researcher, was intrigued to understand the intricacies of dragonfly movements.
He observed that dragonflies could change direction agilely and possess an intriguing ability to fly backward.
In his quest to comprehend the aerodynamic principles applied by dragonflies, Sikorsky adapted these concepts to helicopter design.
He realized that the independent wing movements and flying abilities of dragonflies could be applied to create aircraft capable of taking off and landing vertically, such as helicopters.
By leveraging the natural principles observed in dragonflies, Sikorsky became a pioneer in helicopter development.
His contributions revolutionized the aviation world by creating aircraft with high maneuverability and flexibility in various conditions.